/*******************************************************************************
 * Copyright IBM Corp. and others 2000
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution
 * and is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception [1] and GNU General Public
 * License, version 2 with the OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 *******************************************************************************/

#ifndef OMR_REGISTER_USAGE_INCL
#define OMR_REGISTER_USAGE_INCL

#include "env/TRMemory.hpp"
#include "il/Node.hpp"

namespace TR {
class Register;
}

namespace OMR {

class RegisterUsage {
public:
    TR_ALLOC(TR_Memory::Register)

    RegisterUsage(TR::Register *v, ncount_t u)
        : virtReg(v)
        , useCount(u)
        , mergeFuc(0)
    {}

    TR::Register *virtReg;
    ncount_t useCount;
    ncount_t mergeFuc; // cache a virtual's original future use
};

} // namespace OMR

#endif
